Analysis and Solution of Vibration Failures Diagnosis for theMultistage Centrifugal Pumps

doi:10.3969/j.issn.1006-1355.2018.01.044

›› 2018, Vol. 38 ›› Issue (1): 225-228.DOI: 10.3969/j.issn.1006-1355.2018.01.044

Received:2017-06-22 Revised:2017-08-30 Online:2018-02-18 Published:2018-02-18

多级离心泵振动故障诊断分析及处理

雪增红，白小榜，罗绍华，李文伟，包文瑞

（重庆水泵厂有限责任公司国家企业技术中心，重庆400033 ）

通讯作者: 雪增红

Abstract

Abstract:

The safety and reliability is the key to guarantee normal running for centrifugal pumps, while the vibration is a greatly negative factor. In order to solve the vibration problem, the HG8908C, a vibration data collection system of BEIJING JINGHANG company, was used to monitor the vibration signal on the centrifugal pump. By the vibration failures diagnosis methods, the vibration signal characteristic of amplitude domain, frequency domain and time domain were analyzed in detail and the fault patters generated were figured out. Based on the analytic outcome, controlling the install center for rotor, amplifying the radial-clearance and others solutions, were carried out. The tests results showed that the ways have a positive effect on it, and the pump could work longer hours in a good state. Besides, the vibration failures diagnosis methods were noticeable for solving the vibration problems on centrifugal pumps, and which is valuable for other similar situations.

摘要：

振动是影响离心泵机组安全可靠性运行的重要因素。针对某石化公司多级离心泵振动超标、不能正常运行等问题，借助北京京航公司HG8908C数据采集系统进行振动测试，运用频谱分析方法对其振动信号幅域、时域、频域详细诊断分析，给出其可能的故障因素，并结合解体情况提出调整转子中心、适当增大叶轮出口与导叶进口间的动静间隙等相关方案，有效地解决了振动故障问题，提高了泵组的可靠性。此方法及解决措施对类似振动故障问题具有一定参考价值和指导意义。

关键词: 多级离心泵, 可靠性, 振动测试, 频谱分析, 故障诊断

CLC Number:

TH165+.3

雪增红，白小榜，罗绍华，李文伟，包文瑞 . 多级离心泵振动故障诊断分析及处理[J]. 噪声与振动控制, 2018, 38(1): 225-228.

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